Graph from spreadsheet help

I'm very new here (Hi!) and not very gifted in programming.

I have to take all the countries of the world (190circa) and create a diagram(which best?) that shows all the international organizations(320circa) each country is part of. To explain the complexity an average country like Argentina is part of 80 of those Int Organizations.

My idea was to get something like this
but I'm open to any kind of visualization that shows the membership of these orgs effectively.

My spreadsheet have basically in column all the orgs and in line all the countries and than have a "1" if the country is member of the given org or a "0" if not.

How do I do it from that?
I know I'm asking much but i'm really in the blind, thanks in advance!

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